The 35 kV Photovoltaic Transformer is a turnkey outdoor box substation that merges solar conversion and power distribution in one compact unit. It accepts 690 V DC from photovoltaic arrays, inverts and steps it up to 35 kV or 10 kV, and then routes power through an automatic dual-power switching device—choosing between solar or utility feed as needed. All essential components including inverters, transformers, circuit breakers, and control equipment are pre-integrated to simplify installation and commissioning.
Designed and manufactured in accordance with GB/T 17467 and DL/T 537 standards, this unit offers reliable performance in harsh environments thanks to its weatherproof enclosure. The built-in intelligent control logic ensures seamless power handover, real-time fault detection, and remote monitoring capability, making it an ideal solution for grid-tied solar farms, remote power sites, and urban renewable installations.
| Name | ltem | Unit | Data |
| High voltage unit | Rated voltage | KV | 40.5 |
| Rated current | A | 315 | |
| Withstand current at rated | KA/S | 20/2s | |
| Rated peak withstand current | KA | 50 | |
| Mechanical life | times | >3000 | |
| Low voltage unit | Rated ultimate short-circuit brealring capacity | KA | 65 |
| Rated operating short- circuit breakcing capacity |
KA | 50 | |
| Rated short-time withstand current | KA/1S | 50 | |
| Transformer room unit | Rated Capacity | KVA | 800-2500 |
| Impedance voltage | % | 6.50% | |
| Tap range | % | (36.75±2×2.5%) 0.69KV | |
| Connection group | D.yn11 | ||
| Cabinet unit | Enclosure rating | IP3X | |
| MaximLm temperature | ℃ | 40 | |
| lowest temperature | ℃ | -40 | |
| Ailtitude | m/s | 2500 | |
| Maximum wind speed | m/s | 20.7 | |
| Seismic intensity | ° | 8 | |
| Appearance size | mm | 2700×2600×2000 |
